question

salty avatar image
salty asked

how to prevent overcharge with Blue Smart charger 24v 16A

Hi, Im having a bit of a problem with a Charger.

The system currently is being used a battery backup for controlling valves when the power fails.

I have 2 x E-Guard Battery NH12-100W 12V 28Ah hooked up to produce 24V.

Being charged by a Victron Blue Smart Charger 24V 16A. But now, only a week into the use both batteries have shown bulging. The installer now claims that the charger is too big for the batteries.

I would just like to confirm the correct battery configuration /recommended changes to be used/made to supply 12amps max load @ 24vdc for 5minutes without damaging the batteries when charging.

Thank you in advance for any help offered.

Kind regards.

Leigh.

charger
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1 Answer
marc-de-montreal avatar image
marc-de-montreal answered ·

hi, 24v/28ah of batteries at 16amp is too high for lead acid (if they are) but with a pwm controller, your max panels current is the max current you charge your batt (when the batt are not full or absorbing) under direct sun.. what is your panels Imp (optimum operating current) and your configuration??

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